ADSP-BF527C_15 datasheet(11/36 Pages) AD

Teilenummer	ADSP-BF527C

Bauteilbeschribung	Blackfin Embedded Processor with Codec

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Hersteller	AD [Analog Devices]

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ADSP-BF522C/ADSP-BF523C/ADSP-BF524C/ADSP-BF525C/ADSP-BF526C/ADSP-BF527C

Rev. A

|

Page 11 of 36

|

March 2010

SOFTWARE CONTROL INTERFACE

The software control interface provides access to the

programmer-selectable control registers and can operate with a

2-wire (TWI) or 3-wire (SPI) interface, depending on the setting

of the CMODE pin. If the CMODE pin is set to 0, the 2-wire

interface is selected; if 1, the 3-wire interface is selected.

Within each control register is a control data-word consisting of

16 bits, MSB first. Bit B15 to Bit B9 are the register map address,

and Bit B8 to Bit B0 are register data for the associated register

map.

When 2-wire (TWI) mode is selected, CSDA generates the serial

control data-word; CSCL clocks the serial data; and CSB deter-

mines the TWI device address. If the CSB pin is set to 0, the

address selected is 0011010; if 1, the address is 0011011.

When 3-wire (SPI) mode is selected, CSDA generates the con-

trol data-word, CSCL clocks the control data-word into the

codec, and CSB latches in the control data-word.

Figure 11. Codec SPI Serial Interface

Figure 12. Codec TWI Serial Interface

B15

B14

CSB

CSCL

CSDA

B0

B01

B02

B03

B04

B05

B06

B07

B08

B09

B10

B11

B12

B13

REGISTER MAP

ADDRESS

REGISTER

DATA

P

9

8

1 – 7

9

8

1 – 7

9

8

1 – 7

S

CSDA

CSCL

START

ADDR

R/W

ACK

SUBADDRESS

ACK

STOP

DATA

Figure 13. Codec TWI Write and Read Sequences

WRITE

SEQUENCE

READ

SEQUENCE

SA1

A7

A0

A(S)

S

B15

B9

0

01

0P

0

...

A1

A7

A0

A(S)

...

B0

B8

B7

A(M)

...

B0

B7

P

...

DEVICE

ADDRESS

DEVICE

ADDRESS

REGISTER

ADDRESS

SA1

A7

A0

A(S)

B15

B9

B8

0

...

DEVICE

ADDRESS

REGISTER

ADDRESS

REGISTER

DATA

(SLAVE DRIVE)

REGISTER

DATA

S/P = START/STOP BIT.

A0 = I2C R/W BIT.

A(S) = ACKNOWLEDGE BY SLAVE.

A(M) = ACKNOWLEDGE BY MASTER.

A(M) = ACKNOWLEDGE BY MASTER (INVERSION).

Ähnliche Beschreibung - ADSP-BF527C_15

Hersteller	Teilenummer	Datenblatt	Bauteilbeschribung
Analog Devices	ADSP-BF525C	1Mb / 36P	Blackfin Embedded Processor with Codec REV. A
	ADSP-BF522C	1Mb / 36P	Blackfin Embedded Processor with Codec REV. A
	ADSP-BF523C	1Mb / 36P	Blackfin Embedded Processor with Codec REV. A
	ADSP-BF524C	1Mb / 36P	Blackfin Embedded Processor with Codec REV. A
	ADSP-BF526C	1Mb / 36P	Blackfin Embedded Processor with Codec REV. A
	ADSP-BF533SBBC-500	2Mb / 64P	Blackfin Embedded Processor Rev. I
	ADSP-BF531	671Kb / 56P	Blackfin Embedded Processor REV. 0
	ADSP-BF538	3Mb / 56P	Blackfin Embedded Processor Rev. PrD
	ADSP-BF538	3Mb / 60P	Blackfin Embedded Processor Rev. E
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